Nomenclature
original description
Allen J. A. & Sanders H. L. (1973). Studies on deep-sea Protobranchia (Bivalvia): The families Siliculidae and Lametilidae. <i>Bulletin of the Museum of Comparative Zoology, Harvard 145 (6)</i>: 263-310, available online at https://biodiversitylibrary.org/page/4336423 [details]
Other
additional source
Bieler, R.; Carter, J. G.; Coan, E. V. (2010). Classification of Bivalve families. Pp. 113-133, in: Bouchet P. & Rocroi J.-P. (2010), Nomenclator of Bivalve Families. <em>Malacologia.</em> 52(2): 1-184. [details]
additional source
Rosenberg, G. 2005. Malacolog 4.0: A database of Western Atlantic marine Mollusca. [WWW database (version 4.0.1)], available online at http://www.malacolog.org [details]
From editor or global species database
Nomenclature Egorova & Starobogatov established Radiidens as a substitute name for "Silicula Thiele, 1935 [sic], non Jeffreys, 1879", with S. fragilis Jeffreys, 1879, as type, and considered that the real Silicula Jeffreys was a substitute name for Phaseolus Monterosato, 1875, therefore with the same type species (P. ovatus Monterosato, 1875).
The question is further complicated because Phaseolus ovatus was a nomen nudum in Monterosato (1875) and is only available from Seguenza (1877)
Jeffreys somewhat ambiguously established Silicula as a substitute name for Phaseolus Monterosato, 1875 (which he believed not to have been properly established and to be preoccupied in botany), while at the same time fixing S. fragilis Jeffreys, 1879, as type. Thiele (1934) explicitly attributed Silicula to Jeffreys, 1879, and stated the type species to be S. fragilis Jeffreys, 1879. Allen & Sanders (1973) cited S. fragilis as type of Silicula when they established the name Siliculidae. Depending on the valid type species of Silicula, Siliculidae is either an objective synonym of Phaseolidae or a potentially valid name with Radiidentidae as an objective synonym. Under Art. 65.2, the case should be brought to the International Commission for Zoological Nomenclature. [details]